Chastain, 21, will drive a Watermelon.org-sponsored car for team owners Jimmy and Jamie Dick on May 24th in the History 300 (2:45 p.m. ET, ABC). He will become the team's fifth driver this season, joining Todd Bodine, Jamie Dick, Caleb Roark and Jimmy Weller. Roark is scheduled to make his Nationwide debut this Sunday in the Get to Know Newton 250 (2 p.m. ET, ESPN) at Iowa Speedway.

"I want to thank Jamie Dick and everyone at Viva Motorsports for giving me this opportunity," Chastain said in a statement released by the team. "I'm looking forward to working with Bill (Henderson) and the crew as I'll be leaning on them a lot."

The Alva, Fla., native enjoyed his greatest success in the Truck Series in 2013, when he won two pole positions and recorded a pair of runner-up finishes among his four top-five finishes in a part-time schedule for Brad Keselowski Racing.

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